The McLaren P1 supercar is nearly ready for its first customer deliveries, but the team behind it is still putting on the final touches and putting the car through rigorous final testing. Photos and video from a recent test in the Arctic Circle show the car in all of its still-camouflaged glory.

Cadillac is continuing testing of its own, but not of a supercar--of its semi-automated driving system called Super Cruise. Letting drivers tune out for a bit behind the wheel while maintaining following distance, speed, and lane position might sound a bit scary, but it's looking more and more like it will be a reality soon.

Aston Martin has lapped the Nürburgring in its new Hydrogen Hybrid Rapide S, marking the first hydrogen-only lap of the famed circuit. The team behind the car is preparing for the Nürburgring 24 Hours endurance race, where the Hydrogen Hybrid Rapide S will compete in the E1-XP class.

You'll find all of this and more from around the High Gear Media network right here at Motor Authority.